js怎么實(shí)現(xiàn)給存儲的cookie值一個(gè)有效期并讓次日自動失效

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js怎么實(shí)現(xiàn)給存儲的cookie值一個(gè)有效期，讓次日自動失效，重新計(jì)數(shù)，代碼如下：

cookie = {

    /**

     * 獲取cookie

     */

    get: function (name) {

        var cookieName = encodeURIComponent(name) + ‘=‘,

            cookieStart = document.cookie.indexOf(cookieName),

            cookieValue = null;

        if (~cookieStart) {

            var cookieEnd = document.cookie.indexOf(‘;‘, cookieStart);

            if (!~cookieEnd) {

                cookieEnd = document.cookie.length;

            }

            cookieValue = decodeURIComponent(document.cookie.substring(cookieStart + cookieName.length, cookieEnd));

        }

        return cookieValue;

    },

    /**

     * 設(shè)置cookie

     */

    set: function (name, value, expires, path, domain, secure) {

        var cookie = encodeURIComponent(name) + ‘=‘ + encodeURIComponent(value);

        expires instanceof Date && (cookie += ‘; expires=‘ + expires.toGMTString());

        path && (cookie += ‘; path=‘ + path);

        domain && (cookie += ‘; domain=‘ + domain);

        secure && (cookie += ‘; secure‘);

        document.cookie = cookie;

    },

    /**

     * 刪除cookie

     * javascript里，沒有提供直接刪除cookie的api，只有通過將過期時(shí)間，

     * 設(shè)置成過去的某個(gè)時(shí)間，讓cookie過期，來刪除。

     */

    del: function (name, path, domain, secure) {

        this.set(name, ‘‘, new Date(0), path, domain, secure);

    }

}

下面是存儲cookie并設(shè)置有效期：

//cookie過期時(shí)間，次日凌晨

var expires = new Date(new Date(new Date().getTime() + 30*24 * 60 * 60 * 1000).setHours(0, 0, 0, 0));

//需要存儲的cookie值

var value=‘100‘

cookie.set("key", value, expires);

到此，相信大家對“js怎么實(shí)現(xiàn)給存儲的cookie值一個(gè)有效期并讓次日自動失效”有了更深的了解，不妨來實(shí)際操作一番吧！這里是億速云網(wǎng)站，更多相關(guān)內(nèi)容可以進(jìn)入相關(guān)頻道進(jìn)行查詢，關(guān)注我們，繼續(xù)學(xué)習(xí)！